CN202417973U - Minitype axial flow type brushless direct current air pump - Google Patents
Minitype axial flow type brushless direct current air pump Download PDFInfo
- Publication number
- CN202417973U CN202417973U CN2012200206142U CN201220020614U CN202417973U CN 202417973 U CN202417973 U CN 202417973U CN 2012200206142 U CN2012200206142 U CN 2012200206142U CN 201220020614 U CN201220020614 U CN 201220020614U CN 202417973 U CN202417973 U CN 202417973U
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- wheel hub
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- air pump
- blade
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Abstract
The utility model provides a minitype axial flow type brushless direct current air pump. The minitype axial flow type brushless direct current air pump mainly consists of a rotor, a stator, a stator inner ring protective cover, a permanent magnet, two end face wheel hubs and a housing; the rotor comprises a rotor center support shaft, a blade and a blade outer-edge wheel hub, wherein the rotor center support shaft and the blade are fixedly connected with each other or are formed into a whole, the blade outer-edge wheel hub and the blade are fixedly connected with each other or are formed into a whole, the permanent magnet is arranged on the blade outer-edge wheel hub, and the rotor is arranged in the stator inner ring protective cover; and the stator is formed by the means that a stator coil, each phase wire terminal of the stator coil and a flexible control drive circuit are connected with one another, the stator is arranged between the housing and the stator inner ring protective cover, and the relative position of the rotor, the stator and the housing are fixed by the two end face wheel hubs. Therefore, a motor and an air pump are integrated together, so that the higher air displacement can be obtained, the driving power can be reduced, and the starting and speed-adjusting performance of an air pump and a fan can be promoted.
Description
Technical field
The utility model relates to miniature brushless air pump, is specifically related to the miniature brushless direct-current air pump of axial flow.
Background technique
The brush DC drive motor of present widely used micro air pump and minisize dc brush-less fan are all based on the principle work of synchronous machine.All be the principle of inhaling mutually, attract fixed magnetic pole and drive rotor to rotate synchronously by rotary pole according to opposite pole.Different with synchronous machine is; Micro air pump and rotor small-sized, miniature brushless DC fan produce fixed magnetic pole by permanent magnet; Stator coil produces the electric field that magnetic pole constantly changes under the effect of controller, the magnetic pole of the continuous variation that magnetic pole that permanent magnet produces and stator coil produce is because the effect that opposite pole attracts each other causes the rotor rotation.
In above working method, the induction level in the magnetic field of the continuous variation that is produced by fixed coil is directly proportional with electric current, the coil turn through coil, is inversely proportional to the length of magnetic path.Scaling factor is difference along with the difference of hub of a spool magnetic core material.With there not being the coil of magnetic core to compare as two coils of coil magnetic core with the material with better magnetic conductivity, the magnetic intensity that does not have the magnetic core material coil to be produced is much smaller.
For the ease of the magnetic conduction ability of more various materials, call relative permeability to the ratio of the magnetic permeability of certain material and the magnetic permeability of vacuum usually, in order to the magnetic permeability that shows certain material than the magnetic permeability of vacuum big what doubly.Such as: the relative permeability of cast steel is 500---2000, and the relative permeability of silicon steel plate is 7000---10000, and the relative permeability of permally is: 20000---200000.This shows: when with permally during as the magnetic core material of coil, the magnetic intensity of generation is bigger 20,000 to 200,000 times than the magnetic intensity that coil produced that does not have magnetic core material! Coil in Here it is the various high efficiency motors all will be wrapped in the cause on the high alloy material of magnetic permeability.
When the volume of micro fan or micro air pump is very little, can't adopt core structure, in order to produce required magnetic intensity, have only the coil turn of increasing and increase electric current, consequently cause power consumption, copper loss to increase, volume increases.Secondly; In order to improve magnetic intensity, the drive motor of micro air pump and fan all is independent of air pump and fan as a driving source separately, and then drives micro air pump and fan blade through Motor Shaft; This just causes the overall volume of micro air pump and micro fan and air displacement to produce contradiction; Simultaneously, because the cause of motor output shaft has brought inconvenience for the gentle isolation of electricity.
Summary of the invention
The purpose of the utility model is to above problem; A kind of minisize axial-flow formula brushless direct-current air pump is provided; Reaching the space that has reduced air pump under the situation of same air displacement; Reduced driving power consumption, rotor also is simultaneously the rotary inertia that the structure of blade has also reduced rotor, has improved the startup and the speed adjusting performance of rotor.
The technological scheme that the utility model adopted is: a kind of minisize axial-flow formula brushless direct-current air pump mainly is made up of rotor, stator, stator inner ring safety cover, permanent magnet, end face wheel hub, shell; Rotor comprises rotor center back shaft, blade, blade outer rim wheel hub; The rotor center back shaft is connected or integrated molding with vanes fixed; Blade outer rim wheel hub is connected or integrated molding with vanes fixed, is with permanent magnet on the blade outer rim wheel hub, and rotor places in the stator inner ring safety cover; Stator is connected and composed by each phase terminal and the Flexible Control drive circuit of stator coil and stator coil; Stator is installed between shell and the stator inner ring safety cover, and the relative position of rotor, stator, shell is fixed by the both ends of the surface wheel hub.
Described permanent magnet is to be installed on the blade outer rim wheel hub, and the groove of mounting permanent magnet is arranged on blade outer rim wheel hub, and permanent magnet places the groove and the fixing bonding of blade outer rim wheel hub on the blade outer rim wheel hub; Perhaps blade outer rim wheel hub is the magnetic pipe (when blade outer rim wheel hub is the magnetic pipe of the multipole radial magnetizing of process, needn't on blade outer rim wheel hub, slot and mounting permanent magnet again) through multipole radial magnetizing; Said stator inner ring safety cover is made up of polyester film; Be connected by connecting tendon between the wheel hub inner ring of said end face wheel hub and the outer ring.
The relatively independent structure of the air pump of the miniature brushless direct-current air pump of the axial flow of the utility model and existing technology or the drive motor of fan and the pump housing is different fully; The rotor of drive motor itself is exactly the blade of air pump and fan; Be positioned on the outer rim wheel hub of blade owing to produce the permanent magnet of rotating magnetic field, one side has reduced the gap with stator coil, has also increased the distance of the point of action of the active force that produces torque to rotating shaft simultaneously; When producing same torque; Because point of action has increased to the distance of rotating shaft, the active force that needs has just reduced, and the electric current that produces active force has also just reduced.Adopt this structure, reaching the space that has reduced air pump under the situation of same air displacement, reduced driving power consumption, rotor also is simultaneously the rotary inertia that the structure of blade has also reduced rotor, has improved the startup and the speed adjusting performance of rotor.
Compared with prior art; The utility model through structure blade and blade outer rim and on the blade outer rim brushless electric motor rotor of setting-in permanent magnet technological; Motor and air pump are combined together, reducing to obtain the air displacement bigger under the situation of radial dimension, simultaneously than traditional air pump of equal radial dimension; When obtaining bigger air displacement, reduce driving power consumption, promoted the startup and the speed adjusting performance of air pump and fan.Because stator coil and Flexible Control drive circuit all are sealed in the confined space of being made up of shell, end face wheel hub and stator inner ring safety cover; Equal and the gas barrier of all electric elementss; Make micro air pump have explosion-proof performance, can be used as the sampling pump of combustible gas analyzer.
Description of drawings
Fig. 1 is the axial sectional view of the minisize axial-flow formula brushless direct-current air pump of the utility model.
Fig. 2 is the axonometric drawing of the vane rotor of the utility model.
Fig. 3 is the axonometric drawing of the end face wheel hub of the utility model.
Fig. 4 is the axonometric drawing of the new minisize axial-flow formula brushless direct-current air pump of this practicality.
Among the figure, 1-stator inner ring safety cover, 2-shell, 3-end face wheel hub; 4-stator coil winding and Flexible Control drive circuit, 5-rotor, 51-rotor center back shaft; The 52-blade, 53-blade outer rim wheel hub, 54-permanent magnet; The groove of 55-permanent magnet, 56-rotor shaft, 57-rotor shaft bearings.
Embodiment
As shown in Figure 1, the minisize axial-flow formula brushless direct-current air pump of the utility model is made up of rotor 5, stator, stator inner ring safety cover 1, end face wheel hub 3, shell 2.Comprise rotor center back shaft 51, blade 52, blade outer rim wheel hub 53, permanent magnet 54 on the rotor 5; Rotor center back shaft 51 is fixedly connected with blade 52 or is one-body molded; Blade outer rim wheel hub 53 is fixedly connected with blade 52 or is one-body molded; Be processed with the groove 55 of mounting permanent magnet on the blade outer rim wheel hub 53, permanent magnet 54 places the groove and the fixing bonding of blade outer rim wheel hub of blade outer rim wheel hub; Blade outer rim wheel hub 53 also can be the pipe through multipole radial magnetizing, when blade outer rim wheel hub 53 is the pipe of the multipole radial magnetizing of process, needn't on blade outer rim wheel hub 53, slot and mounting permanent magnet 54 again; Rotor shaft 56 is installed in the through hole of rotor center axle 51, and rotating shaft 56 cooperates installation with rotor shaft bearings 57, like Fig. 2, shown in Figure 3.Stator connects and composes (drive circuit is installed on the stator coil) by each phase terminal and the Flexible Control drive circuit 4 of stator coil and stator coil; Stator is installed on (in the space that is made up of stator inner ring safety cover 1, shell 2 and end face wheel hub 3, pack into stator coil winding and Flexible Control drive circuit 4) between shell 2 and the stator inner ring safety cover 1; Rotor 5 places in the stator inner ring safety cover that (rotor 5 that rotor shaft 56, rotor shaft bearings 57, permanent magnet 54 will be installed inserts the space that is made up of stator inner ring safety cover 1 and end face wheel hub 3; Cover another end face wheel hub 3 again), the relative position of rotor, stator, shell is fixing by both ends of the surface wheel hub 3.Stator inner ring safety cover is made up of polyester film.Be connected by connecting tendon between the wheel hub inner ring of end face wheel hub and the outer ring.
After 3 to 12V VDC was provided to the controlling and driving flex circuit, under the effect of controlling and driving device, the blade high speed rotating was discharged from another one end face wheel hub under the effect of blade from the gas that an end face wheel hub gets into.The size of blast is relevant with the design of blade lift angle, and air displacement depends on the geometry design parameter of rotating speed and blade.
Principle according to the utility model; Also various embodiments can be arranged; Under the situation that does not deviate from the utility model essence, those of ordinary skill in the art can make corresponding change and distortion, and these change and be out of shape the protection domain that all belongs to the affiliated claim of the present invention accordingly.
Claims (5)
1. a minisize axial-flow formula brushless direct-current air pump is characterized in that mainly being made up of rotor, stator, stator inner ring safety cover, permanent magnet, end face wheel hub, shell; Rotor comprises rotor center back shaft, blade, blade outer rim wheel hub; The rotor center back shaft is connected or integrated molding with vanes fixed; Blade outer rim wheel hub is connected or integrated molding with vanes fixed, is with permanent magnet on the blade outer rim wheel hub, and rotor places in the stator inner ring safety cover; Stator is connected and composed by each phase terminal and the Flexible Control drive circuit of stator coil and stator coil, and stator is installed between shell and the stator inner ring safety cover, and the relative position of rotor, stator, shell is fixed by the both ends of the surface wheel hub.
2. minisize axial-flow formula brushless direct-current air pump according to claim 1; It is characterized in that described permanent magnet is to be installed on the blade outer rim wheel hub; The groove that mounting permanent magnet is arranged on blade outer rim wheel hub, permanent magnet place the groove and the fixing bonding of blade outer rim wheel hub on the blade outer rim wheel hub.
3. minisize axial-flow formula brushless direct-current air pump according to claim 1 is characterized in that blade outer rim wheel hub is the magnetic pipe through multipole radial magnetizing.
4. minisize axial-flow formula brushless direct-current air pump according to claim 1 is characterized in that said stator inner ring safety cover is made up of polyester film.
5. be connected by connecting tendon between the minisize axial-flow formula brushless direct-current air pump according to claim 1, the wheel hub inner ring that it is characterized in that said end face wheel hub and outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200206142U CN202417973U (en) | 2012-01-17 | 2012-01-17 | Minitype axial flow type brushless direct current air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200206142U CN202417973U (en) | 2012-01-17 | 2012-01-17 | Minitype axial flow type brushless direct current air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417973U true CN202417973U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200206142U Expired - Fee Related CN202417973U (en) | 2012-01-17 | 2012-01-17 | Minitype axial flow type brushless direct current air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417973U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868681A (en) * | 2015-05-27 | 2015-08-26 | 无锡新势力电机科技有限公司 | Hub-type permanent magnetism brushless motor |
| CN106451856A (en) * | 2016-11-18 | 2017-02-22 | 广西大学 | Permanent magnet synchronous motor rotor with gas circulating function |
| CN107762897A (en) * | 2017-10-25 | 2018-03-06 | 郑州云海信息技术有限公司 | A kind of non-axle driving fan module for reducing server noise |
| CN108702047A (en) * | 2016-02-23 | 2018-10-23 | 西门子股份公司 | rotor and motor |
| CN109340180A (en) * | 2018-11-09 | 2019-02-15 | 仪坤动力科技（上海）有限公司 | Blade and internal rotor integral structure and blade and the integrated blower of internal rotor |
| CN109372773A (en) * | 2018-11-09 | 2019-02-22 | 仪坤动力科技（上海）有限公司 | A kind of blade and the integrated blower of internal rotor |
-
2012
- 2012-01-17 CN CN2012200206142U patent/CN202417973U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868681A (en) * | 2015-05-27 | 2015-08-26 | 无锡新势力电机科技有限公司 | Hub-type permanent magnetism brushless motor |
| CN108702047A (en) * | 2016-02-23 | 2018-10-23 | 西门子股份公司 | rotor and motor |
| CN108702047B (en) * | 2016-02-23 | 2021-06-15 | 劳斯莱斯德国有限两合公司 | Rotor and motor |
| CN106451856A (en) * | 2016-11-18 | 2017-02-22 | 广西大学 | Permanent magnet synchronous motor rotor with gas circulating function |
| CN106451856B (en) * | 2016-11-18 | 2019-05-21 | 广西大学 | A kind of permanent-magnetic synchronous motor rotor with gas circulatory function |
| CN107762897A (en) * | 2017-10-25 | 2018-03-06 | 郑州云海信息技术有限公司 | A kind of non-axle driving fan module for reducing server noise |
| CN109340180A (en) * | 2018-11-09 | 2019-02-15 | 仪坤动力科技（上海）有限公司 | Blade and internal rotor integral structure and blade and the integrated blower of internal rotor |
| CN109372773A (en) * | 2018-11-09 | 2019-02-22 | 仪坤动力科技（上海）有限公司 | A kind of blade and the integrated blower of internal rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20180117 |